Reversible tractor-plow.



Patented Dech 11.1917

5 SHEETS-SHEET 2.

m, m M n v a Z wwjm @mi/hmm l'. L. SCOTT. REVERSIBLE TRACTOR PLOW.

1 `APPLHZATO'N FILEB'AFR. 2.1. ISH- Dec. Il

5 SHEET-SHEET 3.

l. L. SCOTT.

'REVERSIBLE TRACTOR PLOW. APPLICATION FILED APR. 21. `:911. Patented Dec 11| 5 SHEETS-#SHEET 4- Manny l. L. SCOTT.

' REVERSIBLE TRACTOR PLOW.

I. `APPLIATIOI FILED `APR. 2T. ISH. 11

y .'l SHEETS-SHEETS- l UNITED STATES OFFICE.

IBA. L. SCOTT, OF FORT COLLINS, COLORADO, ASSIGNOR TO THE TWO WAY TRACTOR COMPANY, OF DENVER,` COLORADO, A CORPORATION OF COLORADO.

REVERSIBLE TRACTOR-PLOW.

Application tiled April 27, 1917.

To all whom t may concern: n l

Be it known that I, 111A L. Sco'r'r, a c1tizenof the United States, residingat Fort Collins, ,in the county of Larimer and State of Colorado, have invented certain new and useful Improvements in liever-sible Tractor- Plowsg. and I dov declare the following to be a full, clear, and exact description ot the invention, such as will enable others skilled in the art to which it appertains to malte and use the same.

My invention relates to tract-or plows and more especially to that class ol tractor plows which are. reversible and adapted for two way plowing. I

The principal object of my invention is to provide a tractor plow which is ot novel construction and in which a plow-carrying member is so disposed as to be p-ivotally mounted in the frame of the tractor below' the axle of the tractor wheel and cstablislring a more direct pull upon the plows than is obtainable with any oi the tractors in use at the present day.

This manner ot mounting,r the plow farr v ing,l member in a tractor trame so as to provide a direi-t pull upon the plows. is of in estira-able. value in tractor construction. and l desire to lay particular emphasis herein ou this manner ot mounting` the plow-carrying nieniher, as it forms a very essential element of my invention. which is claimed broadly in my (fo-pending application. Serial No. 166.0%). renewal ol: original application, Serial No. $5,425, filed Maar 11). 10113.

ll'erctotore it has been the. custom in coni structing tractors oi the type described. to

mount a plow-carrying; 'frame within the frame ot the tractor, usually with the pivot above the axle'ot the tractor wheel or other wise disposed on the frame of the tractor. Such a inarner oi construction does not obtain the .maximum ot etliciency in the operation of the tractor` as the plows will have a tendencyto disengage, but in my construction, owing to the-pivot being mounted below the tractor wheel axle so that the plow-- carrying member can swi'nc below the main frame` a. direct pull is 4insured at all times and disengagement of theplow members is practically eliminated.

Another object of my invention is to prol vide a tract-or of this character in which the plow members are disposed directly in the path of travel of the tractor wheel and Specification of Letters Patent.

Patented Dec. 11, 1917.

Serial No` 164,918.

adjacent thereto so that a more direct pull is exerted upon the plow members, and owing,r to their adjacent relation with the tractor wheel itselt, the ground in front ol the plows is to a certain extent leveled, thereby insuring an even ground through which the plowshare will travel.

,A further object of lny invention is to provide in a tractor ot' this character, a novel construction and arrangementV of a motor and gearing to drive the tractor wheel and also to provide a novel construction Ot opcrating mechanism ior shifting the gearing as well as a novel construction ot operating mechanism for directing:r the steering wheels of the tractor.

lVith these and other general objects in view, which will appear in the description, my invention resides in the novel construction, combination, and arrangement of parts to be more fully hereinafter described and claimed and taken in connection with the accompanying drawings which form a part of this application, and in which:

Figure 1 is a side clevation'of my improved tractor plow;

Fir'. 2 is a top plan view of the same;

Fig. 3 is a longitudinal vertical section taken on the line 29e-3 of Fig', 2;

Fig. -il is a horizontal section taken Asubstantiallj,7 on the line i-t of Fig. 5;

Fig. 5 a vertical transverse section on the line 5-5 otjl"i;r. 1;

Fig. 6 is a vertical transverse section on the line (i-f of Fig". 1.; and

Fig. 7 is a detail vertical section. on the line 7-7 of Fig. 2.

Referring: more particularly to the drawings in whichlike reference characters indicate corresponding,r parts, my invention vcomprises indetail a substantially rectangular fraaie 1 composed of a. plurality of longitudinal parallel spaced angle iron 0r steel beams 2 secured adjacent their ends to transversely extendinglr end bars 3 formed of like material. Mounted intermediate theI ends of the frame and extended transversely thereacross is an axle 4 having a tractor wheel '5 mounted thereon adjacent one side of the frame. The. tractor wheel is of relativelyl large diameter and is adapted to form a support for the side of the frame on which it is mounted. the side bar Z of the frame are bent inwardly and divergently adjacent the tractor wheel The ends of yI standards. I

and terminate inspaced relation from lthe adjacent longitudinal bar of the frame as clearly illustrated inAFig. 7. The inwardly bent portions of the side bar 2 as designated at 2 are secured to the correspondingly extending portions 3 ofthe end bars 3; which construction provides a clearance between the terminals of'the side bar 2 and the adjacent bar of the frame for a plow-carr ing frame to swin therebetween as will e hereinafter descri ed, and furthermore it provides a, cons'truction whereby tlg, end bars 3 will limit the swin of the plo frame to be describe Secured to the longitudinal bars of the frame at the side oppositeithe tra'ctor wheel and projecting outwardly therefrom \i's a pair of angle beams 6, adapted to`\fo a support forv a motor 7 mounted thereon. From the oposite endsl of the adjacent longitudinal eams' at the side of the frame carrying the motor are extended upwardly convergent arms 8 provided with bearings 9 at .their convergent ends to receive there- 25 through the spindles of a pair of swiveled uide and steering wheels 10 mounted there- 1n as.elearly illustrated in Fig. 1. The wheels 10 coact with the tractor wheel at the opposite side of the framel to provide a three-wheeled support for the tractor. Laterally extendin the top of the earings9 to receive therein Worm gears 12 disposed in `mesh with worm gears 13 secured4 to the upper endsof the means of universal joints 14 with steering mechanism toV be hereinafter described.

Extending transversely from the side bar of the frame adjacent the tractor'wheel is a 40 and adapted to formv a platform having mounted thereon the ordinary type of drivers" seat 1 5 having swiveled connection with the platform whereby it may be swung from side to side as desired.

and to thelongitudinal bar. of the frame adjacent'the op osito side of the tractory -their op osite` ends secured tovthejadjacent bars of t e frame as best illustrated in Fig. 1, thereby insuring a firm support for the Pivotall beneaththe tractor axle is a longitudinally extending plow-carxing frame 19 which ow,- 08 ing to its manner o mountinggis adapted carrying brackets 11 are formed at spindles ofthe wheels 10 and'connected "by `pair of-similar .beams 14 Vsuitably secured Y l Secured to the vsidev bar of the frameadjacent the tractor wheel v mounted on a air of stub axles 18 'journa ed in the stan' ards 16 directly-- is desired to plow. This supplemental plowcarryin frame surrounds the tractor wheel and rojects at its ends beyond the adjacent end ars 3 of the main frame beneath .which it swings, and the endportions of tlie'frame extending beyond the adjacent end bars 3 are bent slightly upwarduzo providealclearancefor the earth-working elements 20, in. this instancethe plwshares, when they are brought into engagement with-thesurfaoe of the soil.' The extending end portions of the supplemental frame carrying the earth ,working elements are narrewsofas to disi pose the elements. directly 'in'the'path of travel of,tl1e 'tractor'1wl1ee'l.and in adjacent relation th'ereto, 'as illustrated'in Fig. 2.

In detail the supplemental fraime com# prises a pair of'lo'ng'itudinal -side bars 21 v I connected by. transversely .extendingend bars 22. The side bars 21 are pvoted linra manner hereinbefore 'described directly' below the axle of the 4tractor wheel by' means ofthe stub axlesmounted in the standards.

' 16 and are substantially convergent at their opposite ends projecting beyond the'cnd bars 3 'of the mainframe to formthe narrow portions as described. From the 'point at which the sidebars extend beyond the 'adjacent end bars of the main frame, they are inclined slightly upward from the lon itudinal plane of the, bars to provide a c ear, ance as described, and in'the'narrowed end 'portions of this supplemental frame are' suitably mountedthe Aplows 2()I or other. earth-Working elements as desired.

Either end of the supplementalframe 19 may be lowered so as to bring the plows into engagement with the .surface of 'the.fie1d, whereupon the opposite A`end will be swung upwardly and in to Contact with Ithe bottom of the end b ar 3 of the mainframe as clearly illustrated in Fig. 7 whereupon the adjacentside bar of the supplemental frame will be held within the clearance formed' by the ortion 2 of thev side bar 2 of the main rame so as to revent lateral shifting of the supplementa frame and provide a positive 'means for holding the same therein. Suitable gage wheels 23 are provided at ad-4 vanta ecus points on the bars of the supple`- menta frame 19. g

By this construction it will be seen-that .the earthgyvorking elements will beldisposed directly in the `path of travel of the tractor -wheel and relatlvely adjacent thereto whichv `vvlll insure a more even plowing eect as the' tractor wheel willactsiibstantially to level thetfrond' in front of the plows, and owin to l e pivotal mounting ofthe supplementa4 i `tially inverted U-shaped bracket plow-carryin frame below the axle of the tractor whee, a more even and direct pull will be insured and all danger ot' the plows becoming disengaged will be eliminated. This feature l desire to strongly emphasize, as it is a very important one and is not obtainable' in the types of tractor plows used at the present time.

As a means of supporting the gearing adapted for connection between the motor and the tractor' wheel, l provide a substan- 24 secured at its ends to the .longitudinal bar of the main frame adjacent the inner side of the tractor wheel. Mounted longitudinally on lthe transversely extending beams 6 is a similar bean 25, and between the beam and the bracket 24 are 'extended transversely beams 26 to forma suitable framework for supporting the gearing.

Secured to the inner ends of the 'beams 2G andv extending longitudinally7 therebetween is a casting member 27 provided with bearings to receive the ends of a clutch shaft 2S andyto receive also a stub shaft 29 rigidly secured therein at .a point-spaced to one side of the clutch-shaft 28 for a purpose to be herein described. The clutch shaft 28 has its opposite end journaled in the fly wheel 30 of the motor and slidably mounted on the shaft is the ordinary type of friction clutch member B1 having hinged `arms 32 with the split engaging band 33 for frictional en-4 agement with the surface of the fly wheel 30. The clutch member B1 isslidably keyed to the shaft 28 and is adapted to be moved thereon in a manner to be hereinafter described. 4Slidably keyed tothe shaft 28 in a similar manner is a drive pinion 34 adapted to be shifted in a mannerY to be hereinafter described and disposed for mesh with a gear wheel 35 having secured thereon an intern'iediate gear wheel 3G in mesh with a pair of gear wheels 37 mounted between the longitudinal bars of the main frame on axles 38 suitably journaled on the bars of the frame, as disclosed in Fig. 4.

The gear n Wise secured on the` shafts 38, and on the -rocking movement thereon.

inner ends of the shafts are mounted drive pinions 39 disposed in mesh with an internal gear comprising a gearing ring 4,0 secured on the tractor wheel 'as disclosed in Figs. 5 and 6 for driving connection with the, wheel.

On the stub shaft 29 secured in the cast-V ing 27 as hereinbefore described, is slidably mounted a reversing pinion 41 which is adaptedt'o' be suitably actuated for impartin a reverse drive to the tractor wheeL Upwardly extending from the casting 27 is a pair of'larms 42 provided with bearings at their upper ends to receive therethrough a longitudinally extending shaft 43 upon which are mounted bell crank levers 411 for -low tube or shait 51 wheels 37are splined or-other-A These bellcrank levers are disposed adjacent the drive pinion 34; andthe reversing pinion 41, and` are ojiieratively engaged therewith by means oi 'studs projecting from the lower ends of the arms 4l of the levers and engaged in the grooves formed in the pinions, as in the ordinary type of construction.

i Secured at its ends to the transversely extending beams 2G is a second substantially inverted U-shaped bracketbeam 44 which is spaced intermediate the ends of the beams 2t', and is disposed to act as a support for bearing bars 45 and 4G respectively which are adapted to receive therethrough a substantially vertically extending shaft 47 having a bevel gear secured at its upper end and provided at its lower end with a bifur cated arm 4S for operative engagement with the groove in the clutch member 31 so as to enable the clutch member to be shifted upon the sha'lt 28 as will be hereinafter described.

A suitable hood or guard member 49 is smfured to the main lrame and extended over the exposed portion of the tractor wheel, and at opposite sides oi: the tractor wheel is mounted 4a pair ot upwardly extending brackets 50 in transverse alinement and adapted to receive therethrough a holprojecting at one end over the operating platform having secured thereon an operating wheeler lever 52. The" opposite project-ing end of the tube or shaft 51 is provided with a sleeve lsecured the-reon and having thereon a pair of rocker arms 54 extending at angles therefrom and'connecteal at their ends by means et links 55 tothe upper 4ends ot the bell crank levers 43, v3y this construction it will be seen that as theI wheel 52 is rotated in the direction desired, 'the rocker arms will cause the pinions with which they are engaged through the niedium oi the bell crank levers 13, to be slid transversely upon their respective shafts, and when, as is the normal arrangement, the drive pinion 34 is engaged with the intermediate gear wheel 35, the reversing pinion 41 is disposed out of engagement. When ity is desired to reverse the tractor` it is merely necessary to actuate the wheel 52 causing `the rocker arms-54 'to actuate their respective bell crank levers and slide the drive pinion 3a out ot' engagement with the intermediate gear 35. and at the same time sliding the reversing pinion l1 into engagement with the gear an-dfalso into engagement with the drive pinion 34, thereby imparting a reverse drive to the tractor. i I

-Journaled within the hollow tube or shaft` 51 is' a similar hollow shaft 5G having its ends projecting beyond the ends of the shaft lyand'provided at the end projecting over the. operating platform with an operating wheel or lever 57, and provided at its opposite .end with a bevel pinion 58 disposed in of -Tand is also prm'i wheel orlever 60 at its end extendingover yus mesh with the bevel gear secured on the upper end of the vertically disposed clutch shifting shaft-i7 so that when the wheel 57 is rotated in the direction desired, the shaft 47 will be rotated within its bearings 45 and 46, and owing toits operative engagement with the 'clutch member 31, the clutch will be drawn into and out of enga ement with the Hy wheel 30 of the motor as esired. A third shaft 59 is extended through the shaft 5G and projectsbe oud the ends therededy with an operating the operating platform. The 'opposite 'end of the shaft 59 is journaled in bearing members formedl at the upper-ends of the arms 61 of 'a substantially U- shaped bracket 62 suitably secured to an inverted U-shaped bracket beam 63 having its ends secured'to the longitudinally extending beam forming Aa suitable support therefor. The end of the shaft 59 being "mechanism are readil 'accessi described,v it will be--seen that I have provided a tractor which 'wil1 be' most eiiclent arts ofthe le, and in which a' direct even p ul is' insured upon the earth working elements which are so mount,- ed below the main frame 'and beneath the aXle'of the tractor as to eliminate any danin operation, and in which' all,

lger of the elements becoming disengaged.

` hile I rhavedescribed"ind "illustratedin the accompanyin drawings certain specific details entering 1nto the construction 'and mounted in the bearings as described, provvides a support for the end s of the shafts hereinbefore mentioned.

Mounted between the bearings on the arms 61 and secured on. the shaft 59 is a worm gear 46 .disposed inniesh with. worm gears 65 on the ends of the steering rods G6 which are in turn connected with the universal A 'oints`14 of the guiding andsteering wheels ereinbefore described. As a means of re' 4 taining the worm gears in engagement with'the worm 64,.'1 provide a pair of substantially U-shaped yoke members GG mounted at their ends on the shaft 59 between the arms 61 and adapted to act as bearings'for the rods 66, whereby to maintain the worm gears in operative engagement.' The worms 65vare mounted' one above and one below the worm on the shaft 59 so that when the operating wheel 60 is rotated in the desired direction, the guiding )vheels will be caused to turn in opposite directions which will-enable the tractor tomake aturn substantially within its own length, and which 1s a very desirable feature in tractors of this type.

Owing tothe arrangement and location ofthe parts described,.it will be seen that the steering wheel 60 isloeated atthe outermost of the three operating wheels to be at rends of said supplemental frame projecting ing andguidi-ng wheels at one side thereof, a tractor wheel mounted all times readily accessible, and *the gear shifting wheel'52 is arranged on the 'inner .side-'t0 be also readily accessible to theop` erator. This construction disposes the clutch shifting wheel 57 between the steering 'and the gcar'shifting wheels'so that when the tractor is being operated, there will'be no' danger of the `operator inadvertently operating thexwrong wheel. By the construction of thev parts herein wltnesses.

operation of my tractor, .Ivde'sire'it` to 'be understood that I do'not wish to limit my'- self specifically may be employed as will fall 'within the scope of the invention as claimed.

1.4 A device of the character described comprising a main frame, a pair 'of supporting and guiding wheels at one side thereof, a tractor wheel mounted therein adjacent the'opposte side, a longitudinally extending balanced supplemental frame' pivotally mounted in the main frame below the main frame and beneath the tractor axle and s'urrounding said tractor wheel, the opposite beyondthe ends. of the main frameand in *the path of the tractor wheehxand earthworking elements positioned in said projecting ends.

to these, but that any such A2. A device of' the characterfdescribed y comprising a main frame, a pair of'supportin said frame' at the opposite side thereof and intermediate its ends, A'standards depending from. said main frame on opposite sides ofthe-tractor wheel, a vbalanced longitudinally extendingsupplementalframe pivoted in said! 'Standards'beneath the' tractor wheel axle to A vbelow the main frame, saidsuppleii'in Yframe having an enlarged portioni'o-sur-- round the tractor wheel, the ends of tli'esu'p-l beyond the adjaplemental frame projecting i vcent ends ofthe mainframe and substantially convergent to formjnarrowed'end por-ff.,

tractor wheel, said" being-bent upwardly lrlyond. ends of the main frame, and

positioned in said tions in the path of the, end portions the adjacent earth working elements end portions. p

. In testimony whereof I have hereunto set my hand in -the c IRA L1- 'Witnessem l M. C. GRUND, T. A.:Noon

1.16 presence of two subscribing 

